hey guys, correct me if I'm wrong but my friend told me the only difference between the DCT wheel and 6MT wheel is there are holes on the back of the DCT to allow for the paddles to be attached so he said you just need to cut the holes to make it work as a DCT wheel?

The wheel in the F80 is different such that even the airbag shape is different. Unless you plan to use a E9x airbag on a F80 (No idea if the plugs are the same), you're better off leaving it as there's a difference in the buttons on the F80 wheel as well (2 M mode buttons, placement).

I think the plugs for the buttons buttons and airbag might be different in the f80 as well as the shape of the airbag. And since you might need to cut holes to fit the DCT paddles sure you can mount the paddles in the steering wheel, I would suggest picking up a new one that fits the f80 and selling this one.